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#!/usr/bin/env perl
use strict;
use warnings;
use Games::Emulation::DCPU16;
use Games::Emulation::DCPU16::Util 'format_registers', 'format_memory';
use Getopt::Long;
use Time::HiRes;
my $iterations;
my $dump_file = 'dcpu16.dump';
GetOptions(
'iterations=i' => \$iterations,
'dump=s' => \$dump_file,
);
my $bin = $ARGV[0];
open my $fh, '<', $bin or die "Couldn't open $bin for reading: $!";
my $bytecode = do { local $/; <$fh> };
my $cpu = Games::Emulation::DCPU16->new;
$cpu->load($bytecode);
my $time = Time::HiRes::time;
if (defined $iterations) {
$cpu->step for 1..$iterations;
}
else {
$cpu->run;
}
END {
my $duration = Time::HiRes::time - $time;
open my $dump_fh, '>', $dump_file
or die "Couldn't open $dump_file for writing: $!";
print { $dump_fh } "Executed for " . $cpu->clock
. " cycles in $duration seconds\n\n";
print { $dump_fh } "Registers:\n"
. format_registers($cpu->registers,
$cpu->SP, $cpu->PC, $cpu->O)
. "\n";
print { $dump_fh } "Memory:\n"
. format_memory($cpu->memory);
close($dump_fh) or die "Couldn't close $dump_file: $!";
}
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